psu-ng: Get the power config full load property

The supported configuration schema now includes the PowerConfigFullLoad
property to indicate the value that the power-config-full-load GPIO
should be set to for systems that support it.

Reference:
https://github.com/openbmc/docs/blob/master/designs/device-tree-gpio-naming.md#power-config-full-load

Change-Id: I590b9f2aff310f6175b9e66b507423dea0d0a3b4
Signed-off-by: Adriana Kobylak <anoo@us.ibm.com>
diff --git a/phosphor-power-supply/psu_manager.hpp b/phosphor-power-supply/psu_manager.hpp
index e54f536..13da13c 100644
--- a/phosphor-power-supply/psu_manager.hpp
+++ b/phosphor-power-supply/psu_manager.hpp
@@ -13,6 +13,7 @@
 {
     int powerSupplyCount;
     std::vector<uint64_t> inputVoltage;
+    bool powerConfigFullLoad;
 };
 
 using namespace phosphor::power::psu;